Abstract: An information recording apparatus (300) is for recording record information onto an information recording medium (100) comprising a first recording layer (L0 layer) and a second recording layer (L1 layer) to record therein the record information by irradiating laser light. The information recording apparatus is provided with: a recording device (352) for recording the record information into at least one of the first recording layer and the second recording layer by irradiating the laser light; and a controlling device (354) for controlling the recording device to record the record information into a target area (115a), which is a recording area of the second recording layer corresponding to a recording area (105a) of the first recording layer in which the record information is recorded, if the record information is recorded into the second recording layer.

Abstract: An information recording medium is provided with a recording information recording area (102) wherein recording information can be recorded, and an encrypting information recorded area (CDZ) wherein encrypting information (Key1) for encrypting the recording information is previously recorded. The encrypting information recorded area includes a special area (CDZa) having a physical structure different from that of the recording information recording area at least on one part.

Abstract: A pit data generation circuit generates a first clock signal synchronized with pit data and a pit synchronization signal from a sum read signal obtained by reading the length of a pit. A division circuit generates a second clock signal by frequency-dividing the first clock signal. The division circuit is reset by the pit synchronization signal, and is capable of adjusting the phase of the second clock signal.

Abstract: A hologram record apparatus (100) includes a parameter set device (19), a move device (20), and a control device (18). The parameter set device (19) modifies parameters for multiple recordings such as a record angle and a focal depth in relation to at least one of signal light (L3) and reference light (L2) and can fix the parameters. The move device (20) relatively moves the focus position of the signal light and the reference light in the direction along the record surface of a hologram record medium. The control device (18) performs control so that the parameter for the last recording used for recording at the m-th focus position is used as the parameter for the first recording at the m+1-th focus position.

Abstract: The present invention is directed to a duplication controlling method for controlling duplication by embedding an electronic watermark indicating duplication-related control information into contents comprising digital information, wherein the electronic watermarks includes change position information indicating a change position of the contents of the control information.

Abstract: On a disc master DS, a record mark is formed at a displaced position to which the record mark is displaced, in a direction crossing the reading direction thereof, according to a wobble signal. The wobble signal is obtained by modulating the second data including an irregularly patterned bit row in a predetermined modulating method.

Abstract: On a disc master DS, a record mark having a variable length according to the first data is formed at a displaced position to which the record mark is displaced, in a direction crossing the reading direction thereof, according to a wobble signal obtained by modulating the second data in a predetermined modulating method. The original data is recorded in such a manner that the original data is divided into the first data and the second data.

Abstract: An information recording medium such as DVD-R, DVD-RW or the like is provided with a user information recording area in which user information can be recorded. The user information recording area has pre-recorded areas for preventing recording/reproduction of the user information, in a plurality of portions. The user information recording area is divided by the pre-recorded areas into a plurality of partial recording areas including a partial recording area smaller than a unit area in which record information of a read-only recording medium is recorded.

Abstract: On a disc master DS, a record mark having a variable length according to the first data is formed at a displaced position to which the record mark is displaced, in a direction crossing the reading direction thereof, according to a wobble signal obtained by modulating the second data in a predetermined modulating method. A second start position at which the head of the second data is recorded is away from a first start position at which the head of the first data is recorded by a predetermined value.

Abstract: A spatial light modulator, in which light modulation elements are arranged in a same plane. In the spatial light modulator, a plurality of the light modulation elements are arranged such that there are at least two periods of periodic structure corresponding to an arrangement of the light modulation elements in an arbitrary direction in the plane where the light modulation elements are arranged.

Abstract: A holographic recording and reproducing apparatus comprises: a pickup for moving an objective lens that focuses a coherent light beam along a recording track on a holographic recording medium and for detecting reflected light from the recording track to perform focus- and tracking-servo control; a relative velocity determination unit for determining a relative velocity of a converging position of the objective lens with respect to the holographic recording medium; a driving unit for changing a relative position of the objective lens with respect to an optical path of the coherent light beam so as to make the relative velocity fall within a predetermined range at least during a predetermined period; and a control unit for performing recording or reproduction for a recording layer during the predetermined period. The holographic recording medium includes a plurality of markers used for positioning an optical interference pattern of the coherent light beam.

Abstract: An information recording medium in which a groove track oscillated at a first frequency and capable of recording record information is provided with a plurality of recording layers formed previously, and the groove track has a first region (111) capable of detecting synchronization information and address information (LP), and a second region (112) capable of detecting information for discriminating the recording layers.

Abstract: An example memory includes an address control portion, a protection film, a property deterioration material layer, data storage areas, and bonding pads. The protection film protects an organic semiconductor layer of a semiconductor circuit and prevents intrusion of moisture or chemical molecules in the air, light, or the like, into the organic semiconductor layer. Deterioration of the organic semiconductor layer is started by breaking the protection film and using a specified means, thus starting operation of the lifetime period. The property deterioration material layer contains a material for deteriorating the property of the organic semiconductor and deterioration of the organic semiconductor layer is started, for example, by diffusing the material into the organic semiconductor layer.

Abstract: An information recording medium (100) which is rotationally driven at a rotational speed in a range set in advance, provided with allowance information recorded on said information recording medium, the allowance information indicating a range of an allowable rotational speed.

Abstract: A pit data generation circuit generates a first clock signal synchronized with pit data and a pit synchronization signal from a sum read signal obtained by reading the length of a pit. A division circuit generates a second clock signal by frequency-dividing the first clock signal. The division circuit is reset by the pit synchronization signal, and is capable of adjusting the phase of the second clock signal.

Abstract: An information recording medium is provided with a recording information recording area (R) capable of recording reproduction control information (e.g., PGC) and first recording information to be reproduced according the reproduction control information, an encoding information recording area (CDZ) having encoding information (Key “B”) recorded in advance for encoding the first recording information, and a reproduction only area (ROM) having second recording information (B) recorded in advance for being reproduced according to the reproduction control information.

Abstract: An information recording medium (100), provided with: a first recording layer (L0 layer) and a second recording layer (L1 layer) in which record information can be recorded; and a plurality of first block areas, each of which includes a recording area (105a) of a first size on the first recording layer and a recording area (115a) on the second recording layer located at a position facing the recording area of the first size on the first recording layer, and each of which is a unit by which the record information is recorded, at least one of the first recording layer and the second recording layer comprising a size area (104, 114) to record therein first size information (121) which indicates the first size.

Abstract: An information recording medium is provided with a first recording information recording area (102) wherein first recording information, for instance, contents information, can be recorded by a first rotating speed control system (CLV control system), and a second recording information recording area (CDZ) wherein second recording information (Key1), for instance, encryption key, is previously recorded by a second rotating speed control system (CAV control system).

Abstract: An example memory includes an address control portion, a protection film, a property deterioration material layer, data storage areas, and bonding pads. The protection film protects an organic semiconductor layer of a semiconductor circuit and prevents intrusion of moisture or chemical molecules in the air, light, or the like, into the organic semiconductor layer. Deterioration of the organic semiconductor layer is started by breaking the protection film and using a specified means, thus starting operation of the lifetime period. The property deterioration material layer contains a material for deteriorating the property of the organic semiconductor and deterioration of the organic semiconductor layer is started, for example, by diffusing the material into the organic semiconductor layer.

Abstract: An information recording medium (100) is provided with: a first data area (106) in which first data having a form compliant with a predetermined format is recorded in advance; and a second data area (122) to record therein second data used with the first data in order to reproduce content data having a form compliant with the predetermined format.